Joining disk groups

Last published : Jun 19, 2026
The Management Server console lets you join two disk groups by moving all Storage Foundation objects from an imported source disk group to an imported target disk group. The source disk group is removed when the join is complete.
Before performing this operation, all applications that access the volumes should be stopped. Unmount all the file systems that are configured in the volumes.
The reconfiguration must involve an integral number of physical disks. Objects to be joined must not contain open volumes. For a disk group join to succeed, both the source and target disk groups must contain at least one disk that can store copies of the configuration database after the split.
To perform this task, your user group must be assigned the Admin role on the host or the Server perspective. The permission on the host may be explicitly assigned or inherited from a parent Organization.
To join a disk group
  1. In the Management Server console, go to the Server perspective and expand Manage in the left pane.
  2. Expand the Organization or Uncategorized Hosts to locate and select the host.
  3. Expand the host and select Disk Groups.
  4. Right-click on the selected disk group and select Join.
  5. In the Join Disk Group wizard panel, select the target disk group you want to join. Click OK.
See Join Disk Group panel options.
  1. In the Result panel, verify that the selected disk group has been joined successfully.
See About managing disk groups.
More Information
Creating disk groups